{
  "query": "UK construction inflation trends May 2026 NEC4 contract cost escalation benchmarks",
  "raw_results": [
    {
      "url": "https://edzarenski.com/2026/05/13/construction-cost-inflation-2026/",
      "title": "Construction Cost Inflation – 2026 « Construction Analytics",
      "content": "Since 2011, Nonresidential Bldgs inflation averages 4.7%, Residential is 5.2% and Non-bldg is 3.8%. But those averages include the unusually high inflation years of 2021 and 2022. Without those two years, since 2011, average inflation for Nonres Bldgs is 3.9%, Residential is 3.9% and Non-bldg is 2.5%. [...] Since 2011, Nonresidential Bldgs inflation averages 4.7%, Residential is 5.2% and Non-bldg is 3.8%. But those averages include the unusually high inflation years of 2021 and 2022. Without those two years, since 2011, average inflation for Nonres Bldgs is 3.9%, Residential is 3.9% and Non-bldg is 2.5%. [...] Long-term construction cost inflation is normally about double consumer price index (CPI).\n In times of high construction spending growth, nonresidential construction annual inflation averages about 8%. Residential has gone as high as 10%.\n Nonresidential buildings inflation (prior to 2021-2022) averaged 3.7% since the recession bottom in 2011. Six-year 2014-2019 average is 4.4%.\n Residential buildings inflation (prior to 2021-2022) reached a post-recession high of 8.0% in 2013 but dropped to 3.5% in 2015. It has averaged 5.3% for 8 years 2013-2020.\n Although inflation is affected by labor and material costs, a large part of the change in inflation is due to change in contractors’ and suppliers’ margins.",
      "score": 0.5596998,
      "raw_content": null
    },
    {
      "url": "https://www.tmhcc.com/en/news-and-articles/thought-leadership/uk-construction-sector-report-april-2026",
      "title": "UK Construction Sector Report: April 2026 - Tokio Marine HCC",
      "content": "One of the sector’s few genuine improvements heading into\n2026 was the normalisation of input cost inflation. Construction\nmaterial prices had dipped into mild deflation in mid-2023\nfollowing the 2022 peak. Output price inflation, running at 2.7%\ny/y in September 2025 (the latest available ONS data13 had,\nfor the first time in several years, exceeded input price inflation,\nproviding some relief to margins that had been compressed for\nyears. At the 2022 peak, input price inflation reached around\n25% y/y while output price inflation peaked at 12% - a gap of\n13 percentage points that eroded sector balance sheets over\nan extended period and from which many firms had not fully\nrecovered before the current shock arrived. That supportive\ndynamic is now at serious risk of reversal [...] Note:The shaded areas illustrate the relationship between input and output price inflation. Where input inflation exceeds output\ninflation (margin squeeze, shaded red), construction firms are absorbing cost increases they cannot fully pass on to clients. Where\noutput inflation exceeds input inflation (margin relief, shaded blue), firms have greater capacity to recover costs through pricing.\n\n#### Labour Market: Chronic Scarcity, Rising Costs [...] #### Channel 2: Financial Market Tightening\n\nHigher inflation expectations have driven up UK gilt yields and\ncorporate borrowing costs. For construction, two transmission\nroutes matter most. First, developer and contractor borrowing:\nthe effective rate on new loans to UK private non-financial\ncorporations had fallen from a 2024 peak of 7.26% to around\n5.66% by February 2026 – a partial reprieve that had been baked\ninto project financial models. That reprieve has now been eroded,\neffectively reversing months of gradual easing in a matter of weeks.",
      "score": 0.5066652,
      "raw_content": null
    },
    {
      "url": "https://www.arcadis.com/en-gb/insights/perspectives/europe/united-kingdom/uk-construction-market-view-spring-2026",
      "title": "UK Construction Market Outlook Spring 2026 - Arcadis",
      "content": "What is the forecast for UK construction inflation?\n\n  Construction cost inflation is expected to remain moderate in the near term due to soft demand and competitive pressure across supply chains. However, rising commodity and energy prices, labour shortages, and increased infrastructure investment could create renewed inflationary pressure as market activity strengthens.\n How will building costs change in 2026? [...] The Spring 2026 Arcadis UK Market View examines the forces shaping the UK construction market, from shifts in sector performance and regional activity to emerging cost pressures and long-term infrastructure investment.\n\n## UK construction industry trends, growth, and inflation insights\n\nThe Spring 2026 Arcadis UK Market View provides a data-driven perspective on the forces shaping the UK construction sector. The report combines market research and analysis, sector insights, and forward-looking forecasts to help industry leaders navigate an uncertain recovery.\n\nConstruction growth and sector performance analysis—how residential, commercial, infrastructure, and public sectors are diverging in a two-speed recovery. [...] UK construction pipeline insights—where future workload is strengthening, and why housing continues to lag despite improving orders.\n\nUK building cost forecast and inflation pressures—the impact of labour markets, commodity volatility (including copper and aluminium), and competitive tender conditions.\n\nInfrastructure investment and mega-project progress—what RIS3, AMP8, defence, flood management, and major transport schemes mean for contractor capacity.\n\nRegional construction market trends—which UK regions are emerging as hot spots, and where pipeline momentum is beginning to recover.\n\n## What the latest UK construction forecast means for 2026",
      "score": 0.49582586,
      "raw_content": null
    },
    {
      "url": "https://www.tmhcc.com/en/news-and-articles/thought-leadership/uk-construction-sector-report-december-2025",
      "title": "UK Construction Sector Report December 2025 - Tokio Marine HCC",
      "content": "Source: ONS\n\nMeanwhile, output price inflation (prices charged by construction companies) has also eased since 2022-23 but still remains positive3. ONS data shows that output price inflation in the sector peaked in mid-2022: in June, inflation for new construction work stood at a very high 12.1%. Repair and maintenance inflation came in at 7.9% y/y, leading to average construction sector output inflation of 10.7%.\n\nUK Construction Sector Output Price Inflation (y/y change in %)\n\nSource: ONS [...] Source: ONS\n\nOutput price inflation in the British construction sector had dropped to 1.6% y/y in March 2024, the lowest reading since late 2020. This was then followed by a short-lived increase (rising to above 3% y/y in October 2024-March 2025) before moderating again in Q2 2025. Latest available data for September 2025 shows construction sector output price inflation standing at 2.7% y/y, thereby exceeding input price inflation. Positively, this is supporting profit margins following several years of material price inflation severely outstripping output price inflation.\n\n##### Output [...] #### Summary\n\nTo view a pdf version, click here.\n\n##### Inflation\n\nPositively, inflationary pressures in the sector have come down over the past years, thereby providing support for UK construction companies (which predominantly operate on fixedprice contracts). According to data from the Office for National Statistics (ONS), construction material prices have moved lower since mid-2023, in line with general consumer price index developments. In June 2022, the “all work” construction price inflation had peaked by 26.8% year on year (y/y), the highest growth rate in 40 years. The “repair and maintenance” (24.7%) and the “new housing” sub-indices (24.0%) also saw immense increases with “other new work” inflation coming in at an even higher 30.5% y/y in mid-2022.",
      "score": 0.46847504,
      "raw_content": null
    },
    {
      "url": "https://gowlingwlg.com/en/insights-resources/articles/2026/war-supply-chain-disruption-and-inflation",
      "title": "War, supply chain disruption and inflation: contractual remedies under standard form construction contracts | Gowling WLG",
      "content": "NEC4 ECC: Secondary option X1 – which must be selected in the contract data –provides a mechanism for the employer to agree to take on the risk of inflation. It has wide application but can be restricted to prices of specific raw materials only. Under NEC4 Option C (target cost), the cost saving or overrun is calculated and split between the parties through a \"pain/gain share\" mechanism, and under Option E (cost reimbursable option), the employer bears the risk of inflation and other cost increases.",
      "score": 0.3145667,
      "raw_content": null
    }
  ],
  "formatted": "Source: Construction Cost Inflation – 2026 « Construction Analytics\nURL: https://edzarenski.com/2026/05/13/construction-cost-inflation-2026/\nSince 2011, Nonresidential Bldgs inflation averages 4.7%, Residential is 5.2% and Non-bldg is 3.8%. But those averages include the unusually high inflation years of 2021 and 2022. Without those two years, since 2011, average inflation for Nonres Bldgs is 3.9%, Residential is 3.9% and Non-bldg is 2.5%. [...] Since 2011, Nonresidential Bldgs inflation averages 4.7%, Residential is 5.2% and Non-bldg is 3.8%. But those averages include the unusually high inflation years of 2021 and 2022. Without those two years, since 2011, average inflation for Nonres Bldgs is 3.9%, Residential is 3.9% and Non-bldg is 2.5%. [...] Long-term construction cost inflation is normally about double consumer price index (CPI). In times of high construction spending growth, nonresidential construction annual inflation averages about 8%. Residential has gone as high as 10%. Nonresidential buildings inflation (prior to 2021-2022) averaged 3.7% since the recession bottom in 2011. Six-year 2014-2019 average is 4.4%. Residential buildings inflation (prior to 2021-2022) reached a post-recession high of 8.0% in 2013 but dropped to 3.5% in 2015. It has averaged 5.3% for 8 years 2013-2020. Although inflation is affected by labor and material costs, a large part of the change in inflation is due to change in contractors’ and suppliers’ margins.\n\n---\n\nSource: UK Construction Sector Report: April 2026 - Tokio Marine HCC\nURL: https://www.tmhcc.com/en/news-and-articles/thought-leadership/uk-construction-sector-report-april-2026\nOne of the sector’s few genuine improvements heading into 2026 was the normalisation of input cost inflation. Construction material prices had dipped into mild deflation in mid-2023 following the 2022 peak. Output price inflation, running at 2.7% y/y in September 2025 (the latest available ONS data13 had, for the first time in several years, exceeded input price inflation, providing some relief to margins that had been compressed for years. At the 2022 peak, input price inflation reached around 25% y/y while output price inflation peaked at 12% - a gap of 13 percentage points that eroded sector balance sheets over an extended period and from which many firms had not fully recovered before the current shock arrived. That supportive dynamic is now at serious risk of reversal [...] Note:The shaded areas illustrate the relationship between input and output price inflation. Where input inflation exceeds output inflation (margin squeeze, shaded red), construction firms are absorbing cost increases they cannot fully pass on to clients. Where output inflation exceeds input inflation (margin relief, shaded blue), firms have greater capacity to recover costs through pricing. #### Labour Market: Chronic Scarcity, Rising Costs [...] #### Channel 2: Financial Market Tightening Higher inflation expectations have driven up UK gilt yields and corporate borrowing costs. For construction, two transmission routes matter most. First, developer and contractor borrowing: the effective rate on new loans to UK private non-financial corporations had fallen from a 2024 peak of 7.26% to around 5.66% by February 2026 – a partial reprieve that had been baked into project financial models. That reprieve has now been eroded, effectively reversing months of gradual easing in a matter of weeks.\n\n---\n\nSource: UK Construction Market Outlook Spring 2026 - Arcadis\nURL: https://www.arcadis.com/en-gb/insights/perspectives/europe/united-kingdom/uk-construction-market-view-spring-2026\nWhat is the forecast for UK construction inflation? Construction cost inflation is expected to remain moderate in the near term due to soft demand and competitive pressure across supply chains. However, rising commodity and energy prices, labour shortages, and increased infrastructure investment could create renewed inflationary pressure as market activity strengthens. How will building costs change in 2026? [...] The Spring 2026 Arcadis UK Market View examines the forces shaping the UK construction market, from shifts in sector performance and regional activity to emerging cost pressures and long-term infrastructure investment. ## UK construction industry trends, growth, and inflation insights The Spring 2026 Arcadis UK Market View provides a data-driven perspective on the forces shaping the UK construction sector. The report combines market research and analysis, sector insights, and forward-looking forecasts to help industry leaders navigate an uncertain recovery. Construction growth and sector performance analysis—how residential, commercial, infrastructure, and public sectors are diverging in a two-speed recovery. [...] UK construction pipeline insights—where future workload is strengthening, and why housing continues to lag despite improving orders. UK building cost forecast and inflation pressures—the impact of labour markets, commodity volatility (including copper and aluminium), and competitive tender conditions. Infrastructure investment and mega-project progress—what RIS3, AMP8, defence, flood management, and major transport schemes mean for contractor capacity. Regional construction market trends—which UK regions are emerging as hot spots, and where pipeline momentum is beginning to recover. ## What the latest UK construction forecast means for 2026\n\n---\n\nSource: UK Construction Sector Report December 2025 - Tokio Marine HCC\nURL: https://www.tmhcc.com/en/news-and-articles/thought-leadership/uk-construction-sector-report-december-2025\nSource: ONS Meanwhile, output price inflation (prices charged by construction companies) has also eased since 2022-23 but still remains positive3. ONS data shows that output price inflation in the sector peaked in mid-2022: in June, inflation for new construction work stood at a very high 12.1%. Repair and maintenance inflation came in at 7.9% y/y, leading to average construction sector output inflation of 10.7%. UK Construction Sector Output Price Inflation (y/y change in %) Source: ONS [...] Source: ONS Output price inflation in the British construction sector had dropped to 1.6% y/y in March 2024, the lowest reading since late 2020. This was then followed by a short-lived increase (rising to above 3% y/y in October 2024-March 2025) before moderating again in Q2 2025. Latest available data for September 2025 shows construction sector output price inflation standing at 2.7% y/y, thereby exceeding input price inflation. Positively, this is supporting profit margins following several years of material price inflation severely outstripping output price inflation. ##### Output [...] #### Summary To view a pdf version, click here. ##### Inflation Positively, inflationary pressures in the sector have come down over the past years, thereby providing support for UK construction companies (which predominantly operate on fixedprice contracts). According to data from the Office for National Statistics (ONS), construction material prices have moved lower since mid-2023, in line with general consumer price index developments. In June 2022, the “all work” construction price inflation had peaked by 26.8% year on year (y/y), the highest growth rate in 40 years. The “repair and maintenance” (24.7%) and the “new housing” sub-indices (24.0%) also saw immense increases with “other new wor\n\n---\n\nSource: War, supply chain disruption and inflation: contractual remedies under standard form construction contracts | Gowling WLG\nURL: https://gowlingwlg.com/en/insights-resources/articles/2026/war-supply-chain-disruption-and-inflation\nNEC4 ECC: Secondary option X1 – which must be selected in the contract data –provides a mechanism for the employer to agree to take on the risk of inflation. It has wide application but can be restricted to prices of specific raw materials only. Under NEC4 Option C (target cost), the cost saving or overrun is calculated and split between the parties through a \"pain/gain share\" mechanism, and under Option E (cost reimbursable option), the employer bears the risk of inflation and other cost increases."
}